Welcome to Q&A for Home Maintenance Q&A section, where you can ask questions and get answers from me and other members of the community.

Spam, self-promotion, questions with abusive, inappropriate language, and irrelevant questions will be deleted.
All of the questions are moderated!

You'll be notified when your question is answered. Please reply with Feedback to share whether a solution worked or didn't work. Thank you!

Connect on Google+
Find on Google+ Local

Natural draft gas water heater sidewall venting

+1 vote


Scott says:
I’m hoping to bypass my chimney flue for my hot water heater. Can I redirect my exhaust from my hotwater heater to the side of my house? 
Similar to how my furnace it doing it.
asked in Gas Water Heater by darekrudy (21,730 points)
Share this question on your favorite network.

1 Answer

0 votes

Hi Scott,


You could sidewall vent water heater only if:
  • it is a direct vent type water heater – it takes all combustion air from exterior. It might be double pipe design (two pipes visible inside) changing to one pipe at wall penetration, or pipe within the pipe inside with a special termination connector on exterior
  • many tankless water heaters can be vented through the side wall
  • power vent type water heater can be also vented through the side wall (PVC vent)
If your water heater has a draft hood (natural draft type water heater), it is required by code to be connected to the chimney.
Give me the model # and brand of your appliance if you’re not sure, or email me a picture of it.
answered by darekrudy (21,730 points)